<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="jquery\jquery.js"></script>
    <style>
        #newImg{position: absolute;}
    </style>
</head>
<body>
    <img src="imgs/1_small.jpg" alt="">
    <img src="imgs/2_small.jpg" alt="">
    <img src="imgs/3_small.jpg" alt="">
    <script>
        $(function(){
            $("img").css({"width":"128px","heigth":"96px"})
            $("img").on({
                mouseenter:function(){
                    //获取索引
                    var index=$(this).index()+1;
                    // alert("1")
                    //追加标签
                    $("body").append($("<div id='newImg'><img src='imgs/"+index+".jpg' /></div>"))
                    //设置图片位置
                    $("#newImg").css({
                        "top":event.pageY+10+"px",
                        "left":event.pageX+10+"px"
                    })

                },
                mouseleave:function(){
                    $("#newImg").remove()
                },
                mousemove:function(){
                  /*  $("#newImg").css({
                        "top":event.pageY+10+"px",
                        "left":event.pageX+10+"px"
                    })
                    */
                }
            })
        })
    </script>
</body>
</html>